# SU10 Check Script
#
# This script checks the installation of Exchange SU10/SU10V2 and verifies the presence and integrity of specific files.
# 2026 www.msxfaq.de

Set-PSDebug -strict

Write-Host "Locating Exchange Installation Directory"
$exinstall = (Get-Itemproperty HKLM:\SOFTWARE\Microsoft\ExchangeServer\v15\Setup).msiinstallpath
if (!(test-path -LiteralPath $exinstall)) {
   Write-Host "Exchange Installation Directory not found. Check path" -ForegroundColor red
   exit 99
}
Write-Host "Exchange Installation Directory: $exinstall"

Write-Host "Checking Exchange Version" -nonewline
if (!(test-path -LiteralPath "$($exinstall)\Bin\ExSetup.exe")) {
   Write-Host "Exchange ExSetup.exe not found. Check path" -ForegroundColor red
   exit 100
}
$exsetupbuild = (get-item "$($exinstall)\Bin\ExSetup.exe").Versioninfo.fileversion
Write-Host " ExSetup: $($exsetupbuild)" -nonewline
if ($exsetupbuild -eq "15.02.2562.049") {
   Write-Host " - Found Exchange SE SU10V1 - Installation V2 or newer recommended" -foregroundcolor yellow
}
elseif ($exsetupbuild -eq "15.02.2562.053") {
   Write-Host " - Found Exchange SE SU10V2" -foregroundcolor green
}
else {
   Write-Host "ExSetup not found or incorrect version" -foregroundcolor red
   exit 101
}

Write-Host "Checking korwbrkr.dll" -nonewline
if (!(test-path -LiteralPath "$($exinstall)\Bin\Search\Ceres\Native\korwbrkr.dll")){
   Write-Host "korwbrkr.dll not found. Check path" -ForegroundColor red
   exit 110
}

$filehash = (Get-Filehash "$($exinstall)\Bin\Search\Ceres\Native\korwbrkr.dll" -Algorithm SHA256)
if ($filehash.hash  -eq '1C6BD8E144BA677EBCC83323AE59DB3881918170F9B3A5189B44611558B92C61') {
   Write-Host " Found valid version" -foregroundcolor green
}
else {
   Write-Host " File not found or invalid version" -foregroundcolor red
   exit 111
}

Write-Host "Checking ko.token.rule.bin" -nonewline
if (!(test-path -LiteralPath "$($exinstall)\Bin\Search\Ceres\Native\ko.token.rule.bin")){
   Write-Host "  not found. Copy Required" -ForegroundColor red
}
else {

    $filehash = Get-FileHash -LiteralPath "$($exinstall)\Bin\Search\Ceres\Native\ko.token.rule.bin" -Algorithm SHA256
    if ($filehash.hash  -eq '8F2BD853593913EB8F73DCD4FCAC4216F216A0FF76A4569DF071BE3C36773010') {
       Write-Host " Found valid version" -foregroundcolor green
    }
    else {
       Write-Host " File is invalid version - Copy Required" -foregroundcolor red
       exit 121
    }
}

Write-Host "Checking ko.complex.rule.bin" -nonewline
if (!(test-path -LiteralPath "$($exinstall)\Bin\Search\Ceres\Native\ko.complex.rule.bin")){
   Write-Host " not found. Copy Required" -ForegroundColor red
}
else {
    $filehash = Get-FileHash -LiteralPath "$($exinstall)\Bin\Search\Ceres\Native\ko.complex.rule.bin" -Algorithm SHA256
    if ($filehash.hash  -eq '0390D1E9A76EF33283025CF8F164430E311584B9535949C4EA1A74B6BB107B87') {
       Write-Host " Found valid version" -foregroundcolor green
    }
    else {
       Write-Host " File is invalid version - Copy Required" -foregroundcolor red
       exit 121
    }
}
Write-Host "Done"